The Cisco Enhanced EtherSwitch Service Modules greatly expands the router's capabilities by integrating industry-leading Layer 2 and Layer 3 switching with feature sets identical to those found in the Cisco Catalyst® 3560-E and Catalyst 2960 Series Switches. The new Cisco Enhanced EtherSwitch Service Modules are the first modules to take advantage of the increased capabilities on the Cisco 3900 and 2900 Series Integrated Services Routers. Additionally, these service modules enable Cisco's industry-leading power initiatives, Cisco EnergyWise®, Cisco Enhanced Power over Ethernet (ePoE), and per-port PoE power monitoring-all of which enhance the ability of the branch office to scale to next-generation requirements and still meet important initiatives for IT teams to operate a power efficient network. Furthermore, the Cisco Enhanced EtherSwitch Service Modules not only perform local line-rate switching and routing but also support direct service module-to-service module communication through the Integrated Services Router Generation 2 multigigabit fabric (MGF) which separates LAN traffic from WAN resources.

• Cisco EnergyWise technology, an innovative architecture that promotes companywide sustainability by reducing energy consumption across an entire corporate infrastructure; Cisco EnergyWise technology can help your company measure the power consumption of network infrastructure and network-attached devices and manage power consumption with specific policies, reducing power consumption to realize increased cost savings; potentially any powered device is affected

• Power over Ethernet; up to 1014 watts per chassis on a Cisco 3900 Series router

• Cisco Enhanced PoE (ePoE), up to 20 watts per port

• IEEE 802.3af PoE support, up to 15.4 watts per port

• Cisco pre-standard PoE

Cisco ES2 Enhanced EtherSwitch Service Module

• Entry-level, lower-cost solution

• Layer 2 switching in hardware

• Full feature parity with the Cisco Catalyst 2960 LAN Base image

• Cisco EnergyWise

• Power over Ethernet; up to 1014 watts per chassis on Cisco 3900 Series router